Gaetano Palumbo – författare

Detailing the fundamental properties of feedback, this book goes on to illustrate techniques of analysis for greater insight into feedback amplifiers and design strategies to optimise their performance. The book has two main purposes: 1) a tutorial purpose since its aim is first to introduce and then to bring the reader to in-depth analysis and design of feedback circuits; 2) to present original material on the topic of feedback circuits. In particular, a new comprehensive approach for the frequency compensation of two-stage and three-stage amplifiers is adopted, and new results are reported for harmonic distortion in the frequency domain.

Presents design strategies for high performance current amplifiers based on CMOS technology. After an introduction to various architectures of operational amplifiers, the operating principles of the current amplifier are outlined. This book provides the reader with simple and compact design equations for use in a pencil and paper design and the following simulation step. Chapter 1 introduces the general aspects of amplifiers. After a preliminary classification of operational amplifiers, ideal blocks and models are discussed for different architectures and a first high-level comparison is made between traditional amplifiers and current amplifiers. Analysis and examples of basic circuits, as well as signal processing applications involving current amplifiers, are also given. Non-idealities and second-order effects causing limitations in performance are then discussed and evaluated. Chapter 2 focuses on low-drive current amplifiers. Several design examples for current conveyors and class A current amplifiers are discussed in detail and design equations are presented for the main performance parameters, which allows a good trade-off between requirements.High-performance solutions for high bandwidth and low voltage capability are also considered, and, finally, current comparators with progressively enhanced performance are reported and analyzed critically. Chapter 3 deals with current amplifiers for off-chip loads. The text should serve as a reference for researchers and professionals of analog IC design, and may also be used as an advanced text on current amplifiers.

Archaeological sites around the world are threatened by forces including population growth, development, urbanization, pollution, tourism, vandalism, and looting Site management planning is emerging as a critical element not only for the conservation of this heritage, but also to address issues such as tourism and sustainable development. This book reports on the proceedings of a workshop held in Greece near the ancient site of Corinth, where an international group of professionals gathered to discuss challenges faced by archaeological sites in the Mediterranean and to examine management planning methods that might generate effective conservation strategies. Part One contains papers addressing threats to the archaeological heritage, the concept of heritage values, and a methodology for the conservation and management of archaeological sites. Part Two features case studies where site management plans have been implemented, or where their use is under discussion Cases include Hadrian's Wall, England; Chan Chan, Peru; Masada, Israel; Petra, Jordan; and Corinth, Greece.The book will be of interest to architects, archaeologists, site managers, and all those charged with the conservation and management of the archaeological heritage.

Current-Mode digital circuits have been extensively analyzed and used since the early days of digital ICs. In particular, bipolar Current-Mode digital circuits emerged as an approach to realize digital circuits with the highest speed. Together with its speed performance, CMOS Current-Mode logic has been rediscovered to allow logic gates implementations which, in contrast to classical VLSI CMOS digital circuits, have the feature of low noise level generation. Thus, CMOS Current-Mode gates can be efficiently used inside analog and mixed-signal ICs, which require a low noise silicon environment. For these reasons, until today, many works and results have been published which reinforce the importance of Current-Mode digital circuits. In the topic of Current-Mode digital circuits, the authors spent a lot of effort in the last six years, and their original results highly enhanced both the modeling and the related design methodologies. Since the fundamental Current-Mode logic building block is the classical differential amplifier, the winning idea, that represents the starting point of the authors’ research, was to change the classical point of view typically followed in the investigation and design of Current-Mode digital circuits. In particular, they properly exploited classical paradigms developed and used in the analog circuit domain (a topic in which one of the authors maturated a great experience).

Feedback Amplifiers: Theory and Design deals with feedback and feedback amplifiers. Although this topic has been extensively investigated over the years, theoretically exact and at the same time sufficiently simple and well organized material is not, to the authors' judgement, present today in literature. After describing the fundamental properties of feedback, the book illustrates techniques of analysis for greater insight into feedback amplifiers and design strategies to optimise their performance. The book has two main targets 1) a tutorial purpose since its aim is first to introduce and then to bring the reader to in-depth analysis and design of feedback circuits; 2) to present original material on the topic of feedback circuits. In particular, a new comprehensive approach for the frequency compensation of two-stage and three-stage amplifiers is adopted, and insightful new results are reported for harmonic distortion in the frequency domain.

The main focus of this book is to provide the reader with a deep understanding of modeling and design strategies of Current-Mode digital circuits, as well as to organize in a coherent manner all the original and powerful authors' results in the domain of Current-Mode digital circuits. Model and Design of Bipolar and MOS Current-Mode Logic includes bipolar Current-Mode digital circuits, which emerged as an approach to realize digital circuits with the highest speed, and CMOS Current-Mode digital circuits, which together with its speed performance has been rediscovered to allow logic gates implementations having the feature of low noise level generation. Model and Design of Bipolar and MOS Current-Mode Logic allows the reader not only to understand the operating principle and the features of bipolar and MOS Current-Mode digital circuits, but also to design optimized digital gates. And, although the material is presented in a formal and theoretical manner, much emphasis is devoted to a design perspective.Moreover, to further link the book's theoretical aspects with practical issues, and to provide the reader with an idea of the real order of magnitude involved assuming actual technologies, numerical examples together with SPICE simulations are included in the book. Model and Design of Bipolar and MOS Current-Mode Logic can be used as a reference to practicing engineers working in this area and as text book to senior undergraduate, graduate and postgraduate students (already familiar with electronic circuits and logic gates) who want to extend their knowledge and cover all aspects of the analysis and design of Current-Mode digital circuits.

CMOS Current Amplifiers presents design strategies for high performance current amplifiers based on CMOS technology. After an introduction to various architectures of operational amplifiers, the operating principles of the current amplifier are outlined. This book provides the reader with simple and compact design equations for use in a pencil and paper design and the following simulation step. Chapter 1 introduces the general aspects of current amplifiers. After a preliminary classification of operational amplifiers, ideal blocks and models are discussed for different architectures and a first high-level comparison is made between traditional amplifiers and current amplifiers. Analysis and examples of basic circuits, as well as signal processing applications involving current amplifiers, are also given. Non-idealities and second- order effects causing limitations in performance are then discussed and evaluated. Chapter 2 focuses on low-drive current amplifiers. Several design examples for current conveyors and class A current amplifiers are discussed in detail and design equations are presented for the main performance parameters, which allows a good trade-off between requirements. High-performance solutions for high bandwidth and low voltage capability are also considered, and, finally, current comparators with progressively enhanced performance are reported and analyzed critically. Chapter 3 deals with current amplifiers for off-chip loads. Several class AB current-mode output stages are discussed and design strategies which improve performance are presented. A detailed analysis of non-ideal effect is carried out with particular emphasis on linearity. Design examples are given and circuit arrangements for further developments are included. CMOS Current Amplifiers serves as an excellent reference for researchers and professionals of analog IC design, and may also be used as an advanced text on current amplifiers.

This book enables readers to gain a deep understanding of the challenges related to the design of a charge pump (CP).

This book enables readers to gain a deep understanding of the challenges related to the design of a charge pump (CP).

This book provides a unified treatment of Flip-Flop design and selection in nanometer CMOS VLSI systems. The design aspects related to the energy-delay tradeoff in Flip-Flops are discussed, including their energy-optimal selection according to the targeted application, and the detailed circuit design in nanometer CMOS VLSI systems.